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A process for preparing regenerated cellulose from Amorpha fruticosa planted in saline-alkali land

A technology of regenerated cellulose and process method, which is applied in the field of preparing regenerated cellulose, can solve the problems of low energy utilization rate, achieve the effects of reducing surface tension, protecting cellulose, and increasing diffusion speed

Active Publication Date: 2020-09-29
WEIFANG YOURONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main chemical components of Amorpha fruticosa are cellulose, hemicellulose, and lignin ash. At present, part of Amorpha fruticosa is used for pulping and papermaking, fiberboard and composite board, and some are used as fuelwood fuel, so the energy utilization rate is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] A method for preparing regenerated cellulose from amorpha amorpha planted in saline-alkali land, comprising the following steps:

[0028] (1) Raw material preparation: Amorpha fruticosa is peeled, pulverized, sieved, dried, cooled to obtain Amorpha fruticosa wood powder;

[0029] (2) Hydrolysis pretreatment: take the amorpha wood powder in step (1), add deionized water with a volume 5 times the weight of the amorpha wood powder, heat the temperature to 100° C., stir, filter and collect the filter residue;

[0030] (3) Acid boiling treatment: take the filter residue in step (2), add the mixed solution (ethanol-acetic acid-polyoxyethylene ether) of organic solvent-acid-surfactant (ethanol-acetic acid-polyoxyethylene ether) of 5 times the volume of the filter residue weight, stir, and heat the temperature to 150 ℃, cook for 1 hour, cool, filter, and wash the collected filter residue with organic solvent repeatedly, and then rinse with deionized water;

[0031] (4) Alkali ...

example 2

[0036] A method for preparing regenerated cellulose from amorpha amorpha planted in saline-alkali land, comprising the following steps:

[0037] (1) Raw material preparation: Amorpha fruticosa is peeled, pulverized, sieved, dried, cooled to obtain Amorpha fruticosa wood powder;

[0038] (2) Hydrolysis pretreatment: take the amorpha wood powder in step (1), add deionized water with a volume 8 times the weight of the amorpha wood powder, heat the temperature to 110° C., stir, filter and collect the filter residue;

[0039] (3) Acid boiling treatment: take the filter residue in step (2), add the mixed solution (ethanol-acetic acid-polyoxyethylene ether) of organic solvent-acid-surfactant (ethanol-acetic acid-polyoxyethylene ether) of 8 times the volume of the filter residue weight, stir and heat to 168 ℃, cook for 2 hours, cool, filter, and wash the collected filter residue with organic solvent repeatedly, and then rinse with deionized water;

[0040] (4) Alkali boiling treatmen...

example 3

[0045] A method for preparing regenerated cellulose from amorpha amorpha planted in saline-alkali land, comprising the following steps:

[0046](1) Raw material preparation: Amorpha fruticosa is peeled, pulverized, sieved, dried, cooled to obtain Amorpha fruticosa wood powder;

[0047] (2) Hydrolysis pretreatment: take the amorpha wood powder in step (1), add deionized water with a volume 10 times the weight of the amorpha wood powder, heat the temperature to 115° C., stir, filter and collect the filter residue;

[0048] (3) Acid boil treatment: take the filter residue in step (2), add the mixed solution (ethanol-acetic acid-polyoxyethylene ether) of filter residue weight 10 volumes of organic solvent-acid-surfactant, stir and heat to 180°C, Cook for 2.5 hours, cool, filter, and wash the collected filter residue with organic solvent repeatedly, and then rinse with deionized water;

[0049] (4) Alkali boiling treatment: in step (3) through the filter residue of organic solvent...

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PUM

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Abstract

The invention relates to the technical field of cellulose extraction, and especially relates to a technical method using amorpha fruticosa planted in saline land to prepare regenerated cellulose. Thetechnical method comprises steps of raw material preparation, hydrolysis pretreatment, acid boiling, alkali boiling, bleaching, spinning liquid preparation, and post treatment. The provided technicalmethod can obtain a regenerated cellulose product with a good performance.

Description

technical field [0001] The invention relates to the technical field of chemical fibers, in particular to a process for preparing regenerated cellulose from amorpha amorpha planted in saline-alkali land. Background technique [0002] Amorpha fruticosa is a perennial leguminous deciduous shrub. Because of its fast growth, strong fecundity, wide adaptability, and resistance to saline-alkaline water and humidity, it can improve saline-alkali land in coastal and low-lying saline-alkali areas. , so it is widely used as soil improvement tree species in saline-alkali land. [0003] The main chemical components of Amorpha fruticosa are cellulose, hemicellulose, and lignin ash. At present, part of Amorpha fruticosa is used for pulping and papermaking, fiberboard and composite board, and some are used as fuelwood fuel, so the energy utilization rate is low. In the prior art, regenerated cellulose is mainly prepared from wood pulp, bamboo pulp, and cotton pulp by viscose method or solv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B16/00
CPCC08B16/00
Inventor 王胜
Owner WEIFANG YOURONG IND